Home / 25,916.18-35,764.72-15,305.78

Finding the Fourth Proportional to 25,916.18, 35,764.72 and 15,305.78

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Solution

The fourth proportional to 25,916.18, 35,764.72 and 15,305.78 is: 21,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,916.18 : 35,764.72 = 15,305.78 : x
  2. Step 2: Convert to fraction form
    25,916.18/35,764.72 = 15,305.78/x
  3. Step 3: Cross multiply
    25,916.18x = 35,764.72 × 15,305.78
  4. Step 4: Simplify right side
    25,916.18x = 547,406,987.23
  5. Step 5: Solve for x
    x = 547,406,987.23/25,916.18
  6. Step 6: Final answer
    x = 21,122.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.